Here are some lens hoods I designed for my Canon lenses. They just twist on like the normal lens hoods although they cannot be mounted backwards.
The three hoods I have designed are for the following lenses:
Canon EF 50mm f1.8 STM
Canon EF-S 10-18mm f4.5-5.6 IS STM
Canon EF-S 55-250mm f4-5.6 IS STM
Print Settings
Printer brand: Creality
Printer: Ender 3 Pro
Rafts: No
Supports: No
Resolution: 0.4mm
Infill: 20%
Filament_brand: Technology Outlet
Filament_color: Black
Filament_material: PLA
Credits:
isaac879